Ps2 Bios

So I've been trying to play PlayStation 2 games but they say I need the BIOS in order to play them so I've been looking at tutorials on YouTube and I will need the pscx2 emulator I downloaded off here but it doesn't work on my Android phone will it only work on a laptop or computer running Windows and a tutorial said not only will I need the pscx2 emulator I will need a PlayStation 2 in order to dump the games or something like that and a flash drive do I really need a PlayStation 2 or can I just use the pscx2 emulator and the game rom I downloaded from here to get the BIOS